We look at the division of 78489901 by 27 
Let's see how many times 27 fits into 78489901.

Step 1:
7 divided by 27 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 27

Step 2:
When dividing 78 by 27, we get 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 54 from 78, we get 24.
Include the next digit (4) from the dividend after 24, then repeat: 244 / 27

Going ahead to step 3:
If we divide 244 by 27, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Deduct 243 from 244 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 27

Step 4:
When dividing 18 by 27, we get 0 with a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 290.0
Deduct 0 from 18 and we're left with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 27

Moving on to step 5:
27 can be fit into 189 7 times, resulting in a remainder of 0.
The next digit of our result is 7. 
Result so far: 2907.0
Deduct 189 from 189 and we're left with 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 27

Step 6:
If we divide 9 by 27, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 29070.0
If we take 0 away from 9, we end up with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 27

Advancing to step 7:
90 divided by 27 is 3 with a remainder of 9.
The next digit of our result is 3. 
Result so far: 290703.0
The remainder is 9 after subtracting 81 from 90.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 27

Let's proceed to step 8:
If we divide 91 by 27, we get 3 and a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 2907033.0
Subtract 81 from 91 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
If we divide 100 by 27, we get 3 and a remainder of 19.
The next digit of our result is 3. 
Result so far: 2907033.3
If we subtract 81 from 100, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 10:
190 divided by 27 is 7 with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 2907033.37
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 11:
10 divided by 27 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 2907033.37
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
27 goes into 100 3 times with a remainder of 19.
Put 3 as the next digit of the answer. 
Result so far: 2907033.3703
If we take 81 away from 100, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 13:
When dividing 190 by 27, we get 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 2907033.37037
If we take 189 away from 190, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 14:
When dividing 10 by 27, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 2907033.37037
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 15:
100 divided by 27 is 3 with a remainder of 19.
The next digit of our result is 3. 
Result so far: 2907033.3703703
Subtract 81 from 100 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 16:
27 can be fit into 190 7 times, resulting in a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 2907033.37037037
If we take 189 away from 190, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The quotient of the division is 2907033.37037037, and the remainder is 1e-09.